Combustion Gas Turbine Exhaust and He at Recovery

Gas turbine advantages over reciprocating engines include the quality and capacity of recoverable rejected heat. While generally offering somewhat lower simple-cycle thermal fuel efficiency than reciprocating engines, particularly under partial loads, gas turbines produce more recoverable heat. Moreover, while industrial reciprocating engines deliver a portion of their recoverable heat in the form of low-grade heat rejection (from jacket water, lubricating oil, and intercooler heat rejection), all of the recoverable heat produced by a gas turbine is in the form of high-temperature exhaust. Thus, while only the exhaust gas from a reciprocating engine can be used to generate high-pressure steam, all of the recoverable heat from a gas turbine can be used for this purpose.

Gas turbines also generally produce exhaust gases with somewhat higher oxygen content than reciprocating engines, though some lean-burn reciprocating engines also produce high-oxygen content exhaust. Gas turbines draw in three to four times the air required for combustion, with some of the air used for turbine cooling. Cooling air mixed

Renewable Energy 101

Renewable Energy 101

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable. The usage of renewable energy sources is very important when considering the sustainability of the existing energy usage of the world. While there is currently an abundance of non-renewable energy sources, such as nuclear fuels, these energy sources are depleting. In addition to being a non-renewable supply, the non-renewable energy sources release emissions into the air, which has an adverse effect on the environment.

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